SU439024A1 - Device for winding electrical capacitors - Google Patents

Description

one

The invention relates to devices for the manufacture of electrolytic capacitor sections, for example K50-3 ,.

Devices for winding electrolytic capacitor sections are known, comprising spindle assemblies mounted on the frame for rolls of reel tapes, a mechanism for rotating the mandrel on which sections are wound, mechanisms for feeding tapes to the mandrel, mechanisms for cutting tapes and a drive mechanism.

Also known are devices for winding sections, in particular, electrolytic capacitors, which further comprise a mechanism for impregnating the dielectric tape during the winding process.

Although the known devices provide winding of sections, including electrolytic capacitors, the sections wound on these devices, after their assembly with the case, do not allow reliable contact of the cathode foil with the capacitor case, which ultimately reduces the quality of electrolytic capacitors.

The purpose of the invention is to create such a device for winding sections of electrolytic capacitors, which, unlike the known ones, during the winding of a section on a mandrel with a sealing elastic sleeve mounted on it, displace the end foils of the foil along the axis of the mandrel, wind them onto an elastic sleeve, which ensures that, when the section is rolled into a metal case, a reliable cathode contact is created in the capacitor.

The proposed device is characterized in that it is provided with a plate hinged on a frame between adjustable stops to accommodate a roll of cathode foil, a foil feed mechanism and a cutting knife, the board being perpendicular to the axis of rotation of the rod with an elastic sleeve and kinematically connected to the drive mechanism.

FIG. 1 shows a general view of the device; in fig. 2 shows a finished section, the turns of the foil which are shifted to the elastic sleeve; in fig. 3 is given a section of the device along AA (view of the cam mechanism of the turntable drive).

On the base 1, there are mounted spindles 2, a paper feed mechanism 3 with articulated jaws 4 and 5 and a mechanism for rotating the mandrel with a winding spindle 6, in the collet clamp of which sits a metal rod 7, which is the mandrel on which the capacitor section is wound. On the horizontal axis 8, located

perpendicular to the axis of the winding section, the rotary plate 9 is installed, which has a spindle 10, a guide roller 11, a mechanism for feeding the cathode foil 12 and a knife 13.

The board 9 is connected through hinge 14 to the lever 15, and through the latter to the fist 16 sitting on the camshaft. On the frame 1 has adjustable stops 17, 18, limiting the movement of the board 9.

The gas ha 14 has elastic elements (not shown in the drawings), allowing the lever 15 to perform an excess stroke in the extreme positions of the plate 9.

On the metal mandrel 7, there is an elastic sleeve 19, on which the last turns of the cathode foil 20 must be displaced.

The device works as follows.

When the spindle b rotates with the metal rod 7 sitting in its clamp, the anode foil is wound onto the latter (welded to the rod in advance), the paper gasket, filled with a paper tape feeder 3, and the cathode foil 20, tucked into the section 12. Simultaneously with winding from the holes in the jaws 4, 5 on the winding paper strip comes under pressure electrolyte. At the end of winding the section, the board 9, under the action of the cam 16, which sits on the camshaft, rotates together with the cathode foil 12 feeding mechanism and the viewing spindle 10 around the axis 8.

Due to the large distance from the axis 8 to the winding section and the small angle of rotation of the board, the stroke of which is limited by adjustable stops 17, 18, the last turns

The cathode strip is moved almost along a straight line parallel to the winding axis of the section. With the simultaneous addition of two movements of the cathode tape — in the direction of the winding section and parallel to the winding axis — the last turns are wound onto the rubber sleeve 19 along a helix (Fig. 2).

Subject invention

A device for winding electrolytic capacitors, containing mechanisms for feeding cathode foil and dielectric tape, a collet chuck with a mandrel in the form of a rod with an elastic sleeve placed on it, a dielectric tape impregnating mechanism, a cutting knife, adjustable stops and a drive mechanism characterized

so that, in order to displace the end turns of the cathode foil on the elastic sleeve and increase the reliability of the device, it is equipped with a plate for a hinged support on the frame between the adjustable stops

placing the cathode foil roll, foil feeding mechanism and cutting knife, the board being located perpendicular to the axis of rotation of the rod with an elastic sleeve and kinematically connected to the driving mechanism.

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